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An orinasal mask, oro-nasal mask or oral-nasal mask [1] is a breathing mask that covers the mouth and the nose only. It may be a complete independent item, as an oxygen mask , or on some anaesthetic apparatuses, or it may be fitted as a component inside a fullface mask on underwater breathing apparatus , a gas mask or an industrial respirator ...
mouth-bit respirators, which fit in the mouth with the nose pinched shut (escape only) quarter-mask or orinasal mask, covering the mouth and nose only; half-mask, from below the eyes to below the chin; fullface mask, from above the eyes to below the chin; Some elastomeric masks include one-way valves to let exhaled air out unfiltered.
A full face mask over the mouth and nose is another approach for people who breathe out of their mouths when they sleep. [13] Often, oral masks and naso-oral masks are used when nasal congestion or obstruction is an issue. [medical citation needed] There are also devices that combine nasal pressure with mandibular advancement devices (MAD).
Each mask will cover up the nose and mouth, and secure on the ears with elastic straps on both sides. ... Best N95 Face Masks Respokare Niosh N95 Respirator Mask N95 Mask Co These revolutionary ...
Full face diving mask, watertight masks covering the eyes, nose and mouth, allowing the wearer to breathe underwater from a self-contained or surface-supplied breathing gas supply; Band mask, a heavy duty full-face diving mask for surface-supplied diving; Diving helmet, covering the entire head in a dome of air. By coverage Quarter-mask or ...
EN 402:2003 — Respiratory protective devices - Lung governed demand Self-contained open-circuit compressed air breathing apparatus with full face mask or mouthpiece assembly for escape. [10] ISO 23269-1:2008 — Ships and marine technology — Breathing apparatus for ships — Part 1: Emergency escape breathing devices (EEBD) for shipboard use.
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